212233 has 4 divisors (see below), whose sum is σ = 242560. Its totient is φ = 181908.

The previous prime is 212227. The next prime is 212239. The reversal of 212233 is 332212.

It is a happy number.

212233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (212227) and next prime (212239).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212233 is a prime.

It is a d-powerful number, because it can be written as 2 + 1 + 2⁷ + 2¹⁵ + 3⁷ + 3¹¹ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15153 + ... + 15166.

It is an arithmetic number, because the mean of its divisors is an integer number (60640).

2²¹²²³³ is an apocalyptic number.

It is an amenable number.

212233 is a deficient number, since it is larger than the sum of its proper divisors (30327).

212233 is an equidigital number, since it uses as much as digits as its factorization.

212233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30326.

The product of its digits is 72, while the sum is 13.

The square root of 212233 is about 460.6875296771. The cubic root of 212233 is about 59.6491561793.

Adding to 212233 its reverse (332212), we get a palindrome (544445).

The spelling of 212233 in words is "two hundred twelve thousand, two hundred thirty-three".